I’m not giving up on tomato season — especially when a simple heirloom tomato Caprese sandwich can capture all of summer in one bite. This easy, fresh sandwich comes together in about 10 minutes and makes a bright, satisfying lunch any day of the week.
If you enjoy simple sandwiches like this, try pairing it with other favorites to build a quick summer menu.
Heirloom Tomato Caprese Sandwich
Ingredients
- 5 assorted heirloom tomatoes, sliced
- 1 cup buffalo mozzarella, torn or sliced
- 1 bunch fresh basil
- 1 bunch watercress, washed
- 1 tablespoon pesto (adjust to taste)
- Your choice of bread (ciabatta, sourdough, or focaccia work well)
- Salt and freshly ground black pepper, to taste
- Optional: a drizzle of extra-virgin olive oil or a splash of balsamic vinegar
Directions
- Wash and dry the herbs and greens. Slice the heirloom tomatoes into even rounds and tear or slice the mozzarella so it’s ready to layer.
- Lightly toast the bread if you prefer extra texture. Spread about a tablespoon of pesto on one or both slices of bread to taste.
- Layer mozzarella on the bottom slice, then add a handful of basil leaves and a small pile of watercress. Arrange the tomato slices on top, overlapping slightly for even coverage.
- Season the tomatoes with a pinch of salt and freshly ground black pepper. If desired, finish with a light drizzle of olive oil or a few drops of balsamic vinegar for added brightness.
- Top with the remaining slice of bread, press gently, slice the sandwich in half, and serve immediately.
This sandwich highlights the sweetness and acidity of ripe heirloom tomatoes balanced with creamy mozzarella and the herbal lift of basil and watercress. It’s flexible — swap greens, add a few slices of avocado, or grill the sandwich briefly for a warm variation. Perfect for a quick lunch, picnic, or a light summer dinner.